Centrifugal machine.



No. 823,943; PATENTED JUNE 19, 1906. F. KAEHL.

CENTRIRUGAL MACHINE.

APPLIGATIOR FILED JULY 9, 1904.

T'IDQUI UNITED STATES PATENT OFFICE.

No, 823,948. Specification of Letters Patent. :atented. June 19, 1906.

Application filed July 8,1904. Serial No, 216,8ilL

10 alt whom it may concern:

Be it known that I, FERDINAND KAEHL technologist, a subject of theEmperor of Ger-, many; residing at 62 Gitsehinerstrasse, Ber-. lin, inthe Empire of Germany, have invented certain new and useful Improvementsin Centrifugel Separating Apparatus, of which the following is aspecification.

This inventioh has for its object scentrifugal separating machine, bymeans of which starch, wheat gluten, and the like may be separated fromwater and dissolved con stituents. For the greater part the drums ofknown centrifugal machines consist of a shallow cylinder, the eripheryof which is conical in form and which is rovided with apertures for thedischar e of t e solid mate rial, while the specificel y lighterconstituents issue through a perforated hub or through discharge-pi eserranged in proximity to the hollow s oft conveying the material to betreated to the'drum. In these arrangements the apertures on the conicalperiphery of the drum may he opened or closed by appropriate means. Thismay be effected, for instance, during the operation of the machine bythe intermediary of pie tons and rods rotetin with the drum.

The device which (arms-the sub'ect of the present invention'dill'ersfrom the own arran emeuts as regardsits construction, owing to t- 1efeet that the drum consists of two conical halves joining each other atan oblique angle and provided with two perforated incased hubs ofdifferent sizes, one of whicl'l and also the drum is surrounded byn ringfor catching the water and solid material, respeotively, and also by thefeet that the s ides serving to open and close the apertures in the drummay be operated by hand by means of a fork displueesble upon ascrewsgindle and not rotntingwith the drum. The s allow conical formamonof the drum per mite of speedy settling of the solid constituents endgradual sliding of the same along the inclined wells to thedisohergeepertures By means of the hollow hubs of different diameters anunimpeded supply of the ma. terial to be treated and discharge of the soarated liquid is able to take place during tlih operation of themachine, and this'while dispensing with a hollow shaft or disksprevents" mg the dliBGl; discharge of the material from the other hub.

The invention is illustrated, by Way of ex' ample, in WlllOh Figure 1shows the machine in vertical sec- -tion. and 3 show the catchingq'ingfor the drum with the adjustable fork in section and in side elevation,res Jectively, upon a smaller scale; and Fig. 4 sh ion 'tudinal sectiona slide for the drugzn. e centrifugal drum consists of two hollowconical halves a and b, which are united at an oblique angle by means ofan annular V U-iro11or in any other convenient mentor. The drum halvesare carried on the horizontel shaft d by means of perforated hubs e f,the diameter of e being greeter than that of f. Upon the outer peripheof the drum are arranged slides g, whic may advanta eously consist oftwo-armed fiat levers t, he d by s rin ressure against thescrewed onplate ll iese slides are dovetailed at one extremity, 13, while theother end is formed with a bore s and these borings register withcorresponding borings in the drumring 6. The drum is surrounded of. its11nddle part with a hollow ring if of semicircular the accompanyingdrawings, in

owe in vertical cross-section, and the-outer end of the hub e V issurrounded by ehollow ring 1 In he ring it a, fork m is mounted in sucha manner to be laterally displeoesble on a bolt 0, entoring longitud nnlslots n in the arms of the fort: and passing through the hol ow casing.fork carries on its host portion a lug n pro sided with a screwthreadedthrough which e screw-spindle g passes. This spindle rents in suitablellneliugs in the lr iow if the spindle is iotnted by means of thehamhwhcel r", the forl is dis plscedeither to the right or lef t hand,and as the fork is arranged so that it may ensue into contact with thedruid-slides g tho-so latter will also be displaced either to thorlghtor left by which means either the b ring '8 0f the slide is caused toregister wile n correiponding boring m of-the plate it said of therum-rice; c or to close the boring w.

The ii: =tcrial to be treated is sdmitte through lie pipe 3; and thehollow hub f into i the drum, owing to the rotation of which the solidconstituents were forced under the inopened b moving the fork m duringthe operetio'n o the machine onto the inner face of the hollow ring it,from which they my be iluence of centrifugal force into theonter; partof the drum in the known man; :1, thence they pass when the slides 9have been ters Patent of the United States, ls-- rated hubs eff 1.Centrifugal apparatus mounted upon a horizontal shaft, and moreparticularly ada ted for starch manufacture characterize by two hollowconical halves c, b fitted to ether at an-oblique angle and fixed on the80 id driving-shaft d b means of two perfo of ifierent diameters ofwhich the hub f serves for the supply of the material to be treated,while the other hub e surrounded by a hollow ring I serves for thedischarge of the separated water substantially as described.

2. In a centrifugal a paratus, a horizontal shaft, hollow conical siells fitted together at an oblique angle, perforated hubs of differentdiameters for securing said shells to said shaft, one of said hubsservin for the supply of the material to be treate and the ot er servingfor the discharge, slides for controlling the discharge, automatic meansfor opening and closing the same and means for receiving the dischargedmaterial.

3. In a centrifugal apparatus, the combination of hollow conical shellsfitted together at an angle and mounted on a shaft, a discharge-openingfrom said shaft adjacent said shaft, discharge-o enings at the peripheryof said she ls, slides or controlling said peripheral openings, a casingsurrounding said shells and in which the same rotate, a casingsurrounding said first-mentioned openin and means or automaticallycontrolling sai peripheral openings whereby the same are 0 ened andclosed during the rotation of the s iells.

In testimony whereof I have hereunto set my hand, in presence of twosubscribing witnesses, this 25th day of June, 1904.

FERDINAND KAEHL.

Witnesses ALois SIEBER, WVoLDEMAa HAUPT.

